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Define usefulness? How do we define the validity of anything?
I have now had four post's removed by TED for being of little use to the community. It has got me thinking, what then are the parameters of usefulness? What lakes anything of use to another human being and who are we to judge whether or not that is true?
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Sireesh Gururaja
In response to the last question, I think as humans we all value something- and to judge what that is is not impossible or impractical. Consequently, anyone can and probably does (if inadvertently sometimes) judge what other people value, and hence call useful.